#include <algorithm>
#include <cstdio>
using namespace std;

int n;

int main() {
#ifndef ONLINE_JUDGE
#ifdef DEBUG
	freopen("testdata.in", "r", stdin);
	freopen("testdata.out", "w", stdout);
#endif
#ifndef DEBUG
	freopen("calculate.in", "r", stdin);
	freopen("calculate.out", "w", stdout);
#endif
#endif
	srand((unsigned long long)new char);
	printf("%d", rand() % 1000000007);
	return 0;
}